* mu-maildir.[ch]: re-implement message flag parsing, message moving
This commit is contained in:
Dirk-Jan C. Binnema
379
src/mu-maildir.c
379
src/mu-maildir.c
@ -618,20 +618,11 @@ mu_maildir_clear_links (const gchar* path, GError **err)
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return rv;
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}
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/*
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* is this a 'new' msg or a 'cur' msg?; if new, we return
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* (in info) a ptr to the info part
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*/
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enum _MsgType { MSG_TYPE_CUR, MSG_TYPE_NEW, MSG_TYPE_OTHER };
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typedef enum _MsgType MsgType;
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static MsgType
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check_msg_type (const char *path, char **info)
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MuFlags
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mu_maildir_get_flags_from_path (const char *path)
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{
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char *dir, *file;
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MsgType mtype;
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g_return_val_if_fail (path, MU_FLAG_INVALID);
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/* try to find the info part */
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/* note that we can use either the ':' or '!' as separator;
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* the former is the official, but as it does not work on e.g. VFAT
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@ -640,96 +631,43 @@ check_msg_type (const char *path, char **info)
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* documentation at http://docs.python.org/lib/mailbox-maildir.html
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* mentions the '!' as well as a 'popular choice'
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*/
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*info = NULL;
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dir = g_path_get_dirname(path);
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file = g_path_get_basename(path);
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/* we check the dir -- */
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if (strstr (path, G_DIR_SEPARATOR_S "new" G_DIR_SEPARATOR_S)) {
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if (!(*info = strrchr(file, ':')))
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*info = strrchr(file, '!'); /* Tinymail */
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if (*info)
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++(*info); /* skip the ':' or '!' */
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char *dir, *dir2;
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MuFlags flags;
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dir = g_path_get_dirname (path);
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dir2 = g_path_get_basename (dir);
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if (g_strcmp0 (dir2, "new") == 0)
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flags = MU_FLAG_NEW;
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g_free (dir);
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g_free (dir2);
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if (g_str_has_suffix(dir, G_DIR_SEPARATOR_S "cur")) {
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if (!*info)
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g_debug("'cur' file, but no info part: %s", path);
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mtype = MSG_TYPE_CUR;
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} else if (g_str_has_suffix(dir, G_DIR_SEPARATOR_S "new")) {
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if (*info)
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g_debug("'new' file, ignoring info part: %s", path);
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mtype = MSG_TYPE_NEW;
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} else
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mtype = MSG_TYPE_OTHER; /* file has been added explicitly as
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a single message */
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if (*info)
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*info = g_strdup(*info);
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g_free(dir);
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g_free(file);
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return mtype;
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}
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MuFlags
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mu_maildir_get_flags_from_path (const char *path)
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{
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MuFlags flags;
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MsgType mtype;
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char *info = NULL;
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g_return_val_if_fail (path, MU_FLAG_NONE);
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g_return_val_if_fail (!g_str_has_suffix(path, G_DIR_SEPARATOR_S),
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MU_FLAG_NONE);
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mtype = check_msg_type (path, &info);
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if (mtype == MSG_TYPE_NEW) { /* we ignore any new-msg flags */
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/* note NEW implies UNREAD */
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flags = MU_FLAG_NEW | MU_FLAG_UNREAD;
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goto leave;
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/* NOTE: new/ message should not have :2,-stuff, as
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* per http://cr.yp.to/proto/maildir.html. If they, do
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* we ignore it
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*/
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if (flags == MU_FLAG_NEW)
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return flags;
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}
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flags = MU_FLAG_NONE;
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if ((mtype != MSG_TYPE_CUR && mtype != MSG_TYPE_OTHER) ||
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!(info && info[0] == '2' && info[1] == ','))
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goto leave;
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/* get the file flags */
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{
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char *info;
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flags |= mu_flags_from_str (info + 2, MU_FLAG_TYPE_MAILFILE);
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/* the UNREAD pseudo flag => NEW OR NOT SEEN */
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if (!(flags & MU_FLAG_SEEN))
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flags |= MU_FLAG_UNREAD;
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leave:
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g_free(info);
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return flags;
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}
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/* note: returns static string, non-reentrant */
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static const char*
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get_flags_str_s (MuFlags flags)
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{
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int i;
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static char flagstr[7];
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i = 0;
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/* now, determine the flags to use */
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if (flags & MU_FLAG_DRAFT)
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flagstr[i++] = 'D';
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if (flags & MU_FLAG_FLAGGED)
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flagstr[i++] = 'F';
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if (flags & MU_FLAG_PASSED)
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flagstr[i++] = 'P';
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if (flags & MU_FLAG_REPLIED)
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flagstr[i++] = 'R';
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if (flags & MU_FLAG_SEEN)
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flagstr[i++] = 'S';
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if (flags & MU_FLAG_TRASHED)
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flagstr[i++] = 'T';
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flagstr[i] = '\0';
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return flagstr;
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info = strrchr (path, '2');
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if (!info || info == path ||
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(info[-1] != ':' && info[-1] != '!') ||
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(info[1] != ','))
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return MU_FLAG_NONE;
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else
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return mu_flags_from_str (&info[2],
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MU_FLAG_TYPE_MAILFILE);
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}
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}
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@ -746,114 +684,163 @@ get_flags_str_s (MuFlags flags)
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* so only difference is whether MuFlags matches MU_FLAG_NEW is set or not
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*
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*/
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static char*
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get_new_dir_name (const char* oldpath, MuFlags flags)
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{
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char *newpath, *dirpart;
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/* g_path_get_dirname is not explicit about whether it ends in
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* a dir-separator (\ or /), so we need to check both */
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const char* cur4 = G_DIR_SEPARATOR_S "cur";
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const char* cur5 = G_DIR_SEPARATOR_S "cur" G_DIR_SEPARATOR_S;
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const char* new4 = G_DIR_SEPARATOR_S "new";
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const char* new5 = G_DIR_SEPARATOR_S "new" G_DIR_SEPARATOR_S;
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g_return_val_if_fail (oldpath, NULL);
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/* if MU_FLAG_NEW is set, it must be the only flag */
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/* g_return_val_if_fail (flags & MU_FLAG_NEW ? */
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/* flags == MU_FLAG_NEW : TRUE, NULL); */
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newpath = g_path_get_dirname (oldpath);
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if (g_str_has_suffix (newpath, cur4) || g_str_has_suffix (newpath, new4))
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dirpart = &newpath[strlen(newpath) - strlen(cur4)];
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else if (g_str_has_suffix (newpath, cur5) || g_str_has_suffix (newpath, new5))
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dirpart = &newpath[strlen(newpath) - strlen(cur5)];
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static gchar*
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get_new_path (const char *mdir, const char *mfile, MuFlags flags)
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{
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if (flags & MU_FLAG_NEW)
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return g_strdup_printf ("%s%cnew%c%s",
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mdir, G_DIR_SEPARATOR, G_DIR_SEPARATOR,
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mfile);
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else {
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g_warning ("invalid maildir path: %s", oldpath);
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g_free (newpath);
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return NULL;
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}
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/* now, copy the desired dir part behind this */
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if (flags & MU_FLAG_NEW)
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memcpy (dirpart, new4, strlen(new4) + 1);
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else
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memcpy (dirpart, cur4, strlen(cur4) + 1);
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const char *flagstr;
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flagstr = mu_flags_to_str_s (flags, MU_FLAG_TYPE_MAILFILE);
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return newpath;
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return g_strdup_printf ("%s%ccur%c%s:2,%s",
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mdir, G_DIR_SEPARATOR, G_DIR_SEPARATOR,
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mfile, flagstr);
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}
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}
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/*
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* get a new filename for the message, based on the new flags; if the
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* message has MU_FLAG_NEW, it will loose its flags
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*
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*/
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static char*
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get_new_file_name (const char *oldpath, MuFlags flags)
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{
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gchar *newname, *sep;
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gchar sepa;
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/* if MU_FLAG_NEW is set, it must be the only flag */
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/* g_return_val_if_fail (flags & MU_FLAG_NEW ? */
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/* flags == MU_FLAG_NEW : TRUE, NULL); */
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/* the normal separator is ':', but on e.g. vfat, '!' is seen
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* as well */
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newname = g_path_get_basename (oldpath);
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if (!newname) {
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g_warning ("invalid path: '%s'", oldpath);
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return NULL;
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}
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/* 'INVALID' means: "don't change flags" */
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if (flags == (unsigned)MU_FLAG_INVALID)
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return newname;
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/* the filename may or may not end in "[:!]2,..." */
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sepa = ':'; /* FIXME: this will break on vfat, but we don't
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* want to generate '!' files on non-VFAT */
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if ((sep = g_strrstr (newname, ":")) ||
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(sep = g_strrstr (newname, "!"))) {
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sepa = *sep;
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*sep = '\0';
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}
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{
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gchar *tmp;
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tmp = g_strdup_printf ("%s%c2,%s", newname, sepa,
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get_flags_str_s (flags));
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g_free (newname);
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newname = tmp;
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}
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return newname;
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}
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char*
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mu_maildir_get_path_from_flags (const char *oldpath, MuFlags newflags)
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mu_maildir_get_new_path (const char *oldpath, const char *new_mdir,
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MuFlags newflags)
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{
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char *newname, *newdir, *newpath;
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char *mfile, *mdir, *newpath, *cur;
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g_return_val_if_fail (oldpath, NULL);
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/* if MU_FLAG_NEW is set, it must be the only flag */
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/* g_return_val_if_fail (newflags & MU_FLAG_NEW ? */
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/* newflags == MU_FLAG_NEW : TRUE, NULL); */
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mfile = newpath = NULL;
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newname = get_new_file_name (oldpath, newflags);
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if (!newname)
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return NULL;
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newdir = get_new_dir_name (oldpath, newflags);
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if (!newdir) {
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g_free (newname);
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return NULL;
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/* determine the maildir */
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mdir = g_path_get_dirname (oldpath);
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if (!g_str_has_suffix (mdir, "cur") && !g_str_has_suffix (mdir, "new")) {
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g_warning ("%s: not a valid maildir path: %s",
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__FUNCTION__, oldpath);
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goto leave;
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}
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newpath = g_strdup_printf ("%s%c%s", newdir, G_DIR_SEPARATOR, newname);
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g_free (newname);
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g_free (newdir);
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/* remove the 'cur' or 'new' */
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mdir[strlen(mdir) - 4] = '\0';
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/* determine the name of the mailfile, stripped of its flags */
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mfile = g_path_get_basename (oldpath);
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for (cur = &mfile[strlen(mfile)-1]; cur > mfile; --cur) {
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if ((*cur == ':' || *cur == '!') &&
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(cur[1] == '2' && cur[2] == ',')) {
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cur[0] = '\0'; /* strip the flags */
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break;
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}
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}
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newpath = get_new_path (new_mdir ? new_mdir : mdir,
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mfile, newflags);
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leave: g_free (mfile);
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g_free (mdir);
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return newpath;
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}
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static gboolean
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msg_move_check_pre (const gchar *src, const gchar *dst, GError **err)
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{
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if (!g_path_is_absolute(src)) {
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g_set_error (err, 0, MU_ERROR_FILE,
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"source is not an absolute path: '%s'", src);
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return FALSE;
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}
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if (!g_path_is_absolute(dst)) {
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g_set_error (err, 0, MU_ERROR_FILE,
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"target is not an absolute path: '%s'", dst);
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return FALSE;
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}
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if (access (src, R_OK) != 0) {
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g_set_error (err, 0, MU_ERROR_FILE, "cannot read %s",
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src);
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return FALSE;
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}
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if (access (dst, F_OK) == 0) {
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g_set_error (err, 0, MU_ERROR_FILE, "%s already exists",
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dst);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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msg_move_check_post (const char *src, const char *dst, GError **err)
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{
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/* double check -- is the target really there? */
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if (access (dst, F_OK) != 0) {
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g_set_error (err, 0, MU_ERROR_FILE, "can't find target (%s)",
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dst);
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return FALSE;
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}
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if (access (src, F_OK) == 0) {
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g_set_error (err, 0, MU_ERROR_FILE, "source is still there (%s)",
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src);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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msg_move (const char* src, const char *dst, GError **err)
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{
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if (!msg_move_check_pre (src, dst, err))
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return FALSE;
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if (rename (src, dst) != 0) {
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g_set_error (err, 0, MU_ERROR_FILE, "error moving %s to %s",
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src, dst);
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return FALSE;
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}
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if (!msg_move_check_post (src, dst, err))
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return FALSE;
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return TRUE;
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}
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gchar*
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mu_maildir_move_message (const char* oldpath, const char* targetmdir,
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MuFlags newflags, GError **err)
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{
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char *newfullpath;
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gboolean rv;
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g_return_val_if_fail (oldpath, FALSE);
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newfullpath = mu_maildir_get_new_path (oldpath, targetmdir,
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newflags);
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if (!newfullpath) {
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g_set_error (err, 0, MU_ERROR_FILE,
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"failed to determine target full path");
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return FALSE;
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}
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if (g_strcmp0 (oldpath, newfullpath) == 0) {
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g_set_error (err, 0, MU_ERROR_FILE,
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"target equals source");
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return FALSE;
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}
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rv = msg_move (oldpath, newfullpath, err);
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if (!rv) {
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g_free (newfullpath);
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return NULL;
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}
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return newfullpath;
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}
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Reference in New Issue
Block a user